TY - JOUR
T1 - Dark matter and the baryon asymmetry of the universe
AU - Farrar, Glennys R.
AU - Zaharijas, Gabrijela
PY - 2006
Y1 - 2006
N2 - We present a mechanism to generate the baryon asymmetry of the Universe which preserves the net baryon number created in the big bang. If dark matter particles carry baryon number BX, and σX̄annih<σXannih, the X̄'s freeze-out at a higher temperature and have a larger relic density than X's. If mX 4.5BXGeV and the annihilation cross sections differ by O(10%) or more, this type of scenario naturally explains the observed ΩDM 5Ωb.
AB - We present a mechanism to generate the baryon asymmetry of the Universe which preserves the net baryon number created in the big bang. If dark matter particles carry baryon number BX, and σX̄annih<σXannih, the X̄'s freeze-out at a higher temperature and have a larger relic density than X's. If mX 4.5BXGeV and the annihilation cross sections differ by O(10%) or more, this type of scenario naturally explains the observed ΩDM 5Ωb.
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U2 - 10.1103/PhysRevLett.96.041302
DO - 10.1103/PhysRevLett.96.041302
M3 - Article
AN - SCOPUS:33144459672
SN - 0031-9007
VL - 96
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 041302
ER -